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URANUS 2016, 2017, 2018

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Uranus 2018

29th November2018

Uranus  here afforded us one 12 minute capture using the iR610nm filter which was surprisingly steady given the seeing & elevation.

We tried 2 more captures but the wind came up again & transparency as well as seeing went west - in the image below Ariel was quite easy to pick out by raising the levels but almost impossible to determine from noise in these other 2 captures, so they were discarded...

U20181129_120732IR610post-87685-0-16580600-1543623021

URANUS 2017

9th December 2017

Uranus belowhere has dropped to around 42° and we were surprised to see a rather steady feed: both iR610nm images yielded good outcomes & the NP collar was evinced along with the darker N. Temperate Belt & the thin, brighter Equatorial band, about as good as one can hope for unless there is a storm - & one of these hasn't been seen for several years

The iR610 is a WinJupos integration of the 2 captures (each 9 minutes at 100fps).

Encouraged by the steady seeing we decided to attempt an r-g-b capture, 5 minutes each for the red & green & a bit longer for the blue to ensure that this channel yielded something worthwhile even with drastic frame culling in processsing.

Of note was that like the iR610nm captures where we know we can see the brighter NP region in the live onscreen feed, we could also see it in the red channel display onscreen!

The r-g-b image outcome does show this brighter NP region contrasted against the darker NT area to the left of it in the image: this rgb Uranus showing albedo variations (all from the r-channel) was a bit of a bonus particularly in light of what I had recently said about our opportunities with this planet in 2017..!

A small snippet of the live feed onscreen display of Uranus to show the type of seeing we were lucky enough to encounter.

u20171209_130319RGBpost-87685-0-92510300-1512982734

U20171209GIFpost-87685-0-35922800-1512982841

u20171209_123030post-87685-0-74087500-1512982718

URANUS 2016

26th October 2016

u2016-11-26_11-42&12-47_ir685_dpm

 

u2016-11-26_12-32-&-13-07_ir610_dpm

4th October 2016

u2016-10-04_16-26_ir_dpmNo2@60%

u2016-10-04_15-58_ir_dpm65%

u2016-10-04_15-41_ir_dpm@65%

u2016-10-04_15-41_ir_dpm@120%

u2016-10-04_15-25_ir_dpm65%

24th August 2016

u2016-08-24_18-34_ir_dpm

13th August 2016

u2016-08-13_18-18_rgb_dpm

14th July 2016

The first image for 2016 – this image, taken on July 14th - which is considered fairly “early” for the 2016 Uranus apparition/season. The start of an “apparition” is when any planet reappears in the morning sky after it seems to have disappeared into the West in the early evening sky – that is, it is actually getting so close to the Sun before disappearing behind it. (as seen from Earth)

Some time later (months in reality) it will “re-appear” in the early morning twilight…the start of the next apparition.

We were actually lucky to get this image of Uranus so early in fact…dawn was approaching & being such a dim planet as seen from Earth we only just managed to capture it before the sky became too light to image…& even luckier that we managed to also capture the 5 major moons of Uranus as well! ;) 

u2016-07-14_20-51_ir_dpm#2

 

 

 

 

 

 

 

 

 

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